Re: jack sensor

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Le Tue, 23 Mar 2010 20:51:53 +0000,
zongo saiba <zongosaiba@xxxxxxxxx> a écrit :

> Hi Guys, 
> 
> I am posting here because i desperate trying to make my jack sensor
> work. Basically, my jack sensor is not recognized in gnome alsamixer.
> Which in turns, makes it impossible to mute the internal speakers when
> pluging a headset for example. I do have sound in the headset. By adding
> this line to alsa-base.conf "options snd-hda-intel model=eapd
> probe_mask=1 position_fix=1" I was able to mute the internal speakers
> while connecting external speakers. I am having very good sound with my
> external speakers. 
> - I have the latest alsa-1.0.22.1 
> - I am running Ubuntu 9.10 2.6.31-20-generic
> - sound card: 
> 	Codec: Conexant CX20582 (Pebble)
> 	Codec: Intel G45 DEVCTG
> - I have checked in the alsa doc and it seems that I am out of luck
> because my chipset has no compatibility with alsa driver. 
> - I have installed the graphical front-end to the Default Sound Card
> chooser (asoundconf). That way I can now select my own sound card "hda
> intel" or "pulse". Why is pulse part of this choice, I do not know: May
> be due to the fact that Ubuntu uses a server pulse audio be default
> (please correct me if I am wrong).

pulseaudio is a new sound server that recent gnome version are using by
default. It is not a driver but some kind of glue between alsa and the audio
applications..

> I know this; none of the two
> solutions work. My external headset does work but I cannot mute the
> internal speakers. Most of all, when I mute the master. I loose all
> possibility to regain control of the sound in my headset or external
> speakers. I either have to reboot my machine or shut off the alsa server
> (sudo /etc/init.d/alsa-utils stop) and start it up again. I have just
> noticed as we speak that when I run the command-line
> cat /proc/asound/card0/codec#* | grep Codec, only "Codec: Conexant
> CX20582 (Pebble)". I am not seeing "Codec: Intel G45 DEVTG". I dont know
> what that means, but I have a feeling that I am not going to like it :) 

> This is the output of lspci -nv --> http://pastebin.com/1CBdwNud

Please run lspci as root and post only the part relevant to the audio device.

Dominique

> 
> I would really appreciate some help here or even some pointers on where
> to look next and what is really happening with my sound card. 
> 
> Cheers to all of you, 
> 
> zongo
> 
>

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